Gu, J et al. Evaluation of Invisalign treatment effectiveness and efficiency compared with conventional fixed appliances using the Peer Assessment Rating index. Am J Orthod Dentofacial Orthop February 2017;151:259-66. *Buschang, P et al. Comparative time efficiency of aligner therapy and conventional edgewise braces. Angle Orthodontist, Vol 84, No 3, 2014
In a survey of patients age 13-18 rating on a scale of 1-9, with 1 as 'not at all comfortable' and 9 as 'very comfortable', traditional metal braces patients (n=141) rated 5.5, while Invisalign patients (n=106) rated comfort higher at 7.1. Data on file at Align Technology, December 28, 2022.
Compared to Invisalign aligners previously made from single-layer (EX30) material.